diff --git a/temp_file/Gemfile b/temp_file/Gemfile
index 5b70ad2..87788f4 100644
--- a/temp_file/Gemfile
+++ b/temp_file/Gemfile
@@ -25,7 +25,6 @@ end
 gem 'multipart-post', '1.2'
 gem 'oauth2', '1.4.7'
 gem 'rack-protection', '2.2.2'
-
 if RUBY_VERSION.to_f <= 2.1
   gem 'addressable', '2.8.0'
   gem 'concurrent-ruby', '1.1.9'
@@ -261,3 +260,4 @@ gem 'net_http_unix'
 gem 'roda', '3.66.0'
 gem 'roda-proxy', git: 'http://gitlab.tp.rulingcom.com/chiu/roda-proxy'
 gem "rails-reverse-proxy", git: "http://gitlab.tp.rulingcom.com/chiu/rails-reverse-proxy"
+gem 'loofah', '2.20.0' #bind the latest work version to avoid crash
\ No newline at end of file